PCA
Primary Function
Humectant
Health Score
7/10
Eco Score
6/10
Also Known As
pyrrolidone carboxylic acid, pidolic acid
About PCA
Pyrrolidone carboxylic acid, a component of the skin natural moisturizing factor. Provides excellent humectant properties at low concentrations.
Formulation Role & Skin Benefits
PCA is selected for formulations requiring improving skin hydration levels and moisture balance, delivering supporting smoother and plumper skin appearance.
Best suited for dry, dehydrated, and combination skin types. Typical formulation context: water-based serums, toners, moisturizers, and hydrating masks.
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